Questions specifically about Linux, as opposed to Unix-like systems in general, or to questions about a specific distribution or program.

learn more… | top users | synonyms

0
votes
1answer
20 views

script using sed command

I need your help using sed command I have this output as a result of difference between two file: < IF-Name :STRING: "lns-wall-01-t2" Index:Gge32: 260 --- > IF-Name :STRING: ...
0
votes
0answers
11 views

WiFi unable to connect after sleep ath9k

When I put my PC to sleep and wake it up, it cant connect to WiFi anymore. Sometimes it asks me 5 times to re enter my password and if it manages to connect connect the ping is 2000+, iwconfig says ...
1
vote
1answer
43 views

Extracting duplicity backup data

I've made some backups of my previous systems using Deja Dup (duplicity). In my current distribution it's not available, so I've simply extracted the data. Now in order to make that data meaningful ...
2
votes
1answer
1 view

mdadm Software RAID1 with GPT on Debian 8.0 amd64 - Does not boot on disk removal

INTRO: I have spent countless days attaching/detaching MOLEX->SATA power cables, rebooting machines and trying hundreds of edits and commands. I am on the verge of desperation and desperately in need ...
0
votes
0answers
9 views

Make web project writable by netbeans

I know about Make web project writable by apache and other user and I have the same problem, but the solution there is not working for me. I am new to Linux and it is difficult to understand why ...
1
vote
2answers
44 views

Adding new attribute to existing xml file using sed or awk

I have a xml file which contains below details: <server> <mbean code="WSMQConnectionFactory" name="service=MQQueueConnectionFactory"> <attribute ...
1
vote
2answers
5k views

Install NVIDIA GTX graphics driver on Linux Mint 17.1

I can't get my NVIDIA graphics card to run on Linux Mint 17.1. All I get is a black screen. I tried installing the driver with $ sudo add-apt-repository ppa:xorg-edgers/ppa $ sudo apt-get update $ ...
1
vote
1answer
212 views

Error while booting Ubuntu 14.04 - setterm: $TERM is not defined

Yesterday I restarted my Notebook with Ubuntu 14.04 and got the following error message in between the login-screen and the loaded user interface. Error found when loading /etc/profile setterm: ...
3
votes
1answer
86 views

bashrc lazy substitution

How does one get ~/.bashrc aliases to evaluate $() substitutions at run time, instead of at the time that ~/.bashrc is executed (when opening a terminal)? I run this command often enough that I would ...
2
votes
1answer
21 views

Set default color for top

How do you set the default color for top? Right now there is a red that I can barely read. You can toggle from mono to color with z or set it up more thoroughly with Z. But none of those settings ...
0
votes
1answer
13 views

Turn on bluetooth on login screen

Is it possible to have bluetooth turned on and use a bluetooth keyboard when at the login screen? So far I only managed to start the bluetooth daemon when logged in. I added it to systemd with ...
0
votes
0answers
19 views

Scientific linux GUI Doesn't start

I am a new user of Scientific Linux 6. I am working on a project started by others and unfortunately the GUI stopped working. I need to find out how to troubleshoot the GUI to solve the problem. What ...
0
votes
0answers
6 views

Creating “new” fonts from font variants, using font.conf

Is it possible to make font variants such as condensed versions of certain font families available, by assigning new names to them? In my case, I would like to make use of DejaVu Sans Condensed. The ...
1
vote
1answer
14 views

What do the terms CC, LD and SHIPPED refer to during the Kernel Source compilation process?

What do the terms CC, LD and SHIPPED refer to during the Kernel Source compilation process? Am I correct to assume that [M] indicates that it is being compiled as a module?
0
votes
4answers
65 views

delete all .swp file using rm command

I am trying to find and delete all .swp files in my current directory. I was using below command: rm -i `find . | grep .swp$` But everytime it is giving me this error: rm: missing operand Try `rm ...
1
vote
0answers
7 views

Map a Linux VM's block device to its vmdk file on the vmware datastore

For development and staging purposes, I must frequently create clones of individual virtual harddisks (vmdk container) and move/deploy them into some other system. While I have been able to hack a ...
0
votes
1answer
18 views

Unable to ssh into virtual machine on host only network

I have created a virtual machine in virtual box with host only network. I am able to ping to the virtual machine but when i try to ssh into the same machine it reject my request with following error ...
0
votes
1answer
19 views

how to add application to initrd.gz

I have an initrd.gz (from linux parag*n live cd) I want to edit the file inside and add app like apache,ophcrack,etc. So far I've done extracting by following these step ...
0
votes
0answers
26 views

sort Errors and Exceptions based on date [on hold]

I need to write a script which will pull all the errors and exceptions from all the .zip as well as from .log files and show them orderly. I wrote this below command echo"$((zgrep -E ...
1
vote
0answers
6 views

Diagonal touchpad movement results in wobbly line

I'm using a ThinkPad L440 with a Synaptics touchpad. A while ago (~1-2 months) the touchpad started acting strange when trying to move the mouse pointer diagonally. The picture shows the first line ...
0
votes
1answer
15 views

build X11R7.7 from sources - in which order

Is there an automatic way to understand the order in which individual libraries of the X11R7.7 package should be built when I want to build all of util, lib and xcb?
0
votes
1answer
33 views

How to artificially cause a page fault in linux kernel? [on hold]

I am pretty new to linux kernel. I would like to make the linux kernel fault every time a specified page 'P' is being fetched. One simple conceptual idea is to clear the bit indicating the presence of ...
4
votes
4answers
9k views

How do I start the fan manually in Linux?

My fan doesn't run in Linux. I'm worried that the laptop might turn off if the temperature gets critically high. I ran the following command: dmesg | grep -I fan This gave me: ACPI: Fan [FAN0] ...
0
votes
1answer
452 views

mailx: nss-config-dir=/etc/pki/nssdb/: No such file or directory

I am trying to send email using mailx using remote SMTP server (in my case it is office365 SMTP Server). Here is the command: # echo "THis is the Body of the email" | mailx -v -s "This is email ...
22
votes
11answers
19k views

Linux replacement for Apple Keynote software?

I am trying to migrate from Mac OS X to a Linux distribution, maybe/probably Ubuntu. One of my favorite applications for the Mac was Apple Keynote, which makes amazing sideshow presentations. Is ...
0
votes
3answers
28 views

Change display output with xrandr?

My roommate has a really old 1280x1024 VGA display that the driver sets to 1600x1200 by default and it causes it to display a message saying it can't display the input. I can ctrl+alt+f1 and use ...
0
votes
1answer
22 views

Change screen resolution into Kali on Mac BookPro

I installed Kali in dual boot on my Mac Book Retina, all work, but I have a screen resolution too high. So I need to change the screen resolution, but if I change it, the screen become black, and ...
5
votes
2answers
24 views

Define physical volume inside non-partitioned disk

I've been able to define a physical volume (LVM) in two ways: Creating a 8e (Linux LVM type) partition and then # pvcreate /dev/sdb1 Usign pvcreate directly using a non-partitioned disk and then # ...
0
votes
1answer
27 views

How to get a list of major number -> driver associations

http://www.nostarch.com/tlpi states: "Each device driver registers its association with a specific major device ID, and this association provides the connection between the device special file and the ...
3
votes
1answer
127 views

Which file in /proc gets read by the kernel during the boot up process?

Which file in /proc gets read by the kernel during the boot up process? This was a question on my LPIC 101 test that I think I might have answered wrong. I searched on google and some other places but ...
0
votes
1answer
30 views

Linux drop packets if received from another equipment

Problem description : When I establish a VPN connexion between a VPN client and my home server, if the connexion are both across my firewall (pfSense) or are established directly, the connexion is ...
2
votes
0answers
12 views

How to find out which process keeps tunnel interface(tun) up?

If I create a tun interface with ip tuntap add mode tun command and force it administratively up with ip link set dev tun1 up command, then the interface itself is always "physically" down: ...
1
vote
0answers
19 views

Using autossh to create a persistent, multiplexed ssh connection without any port forwarding?

I want to use autossh to maintain an ssh session configured for multiplexing. This way I can write scripts on my localhost that take advantage of the persistent ssh connection. I'm having trouble ...
0
votes
0answers
18 views

connecting to virtualbox ubuntu from osx extremly slow

I am running ubuntu 10.04.x as guest on virtualbox from osx x 10.10.x host It works (kind of), but after working a while with it and also after power sleep it can get almost unusable slow. It looks ...
0
votes
0answers
11 views

Unable to boot Kali Linux 1.1.0

recently I have made a USB livestick for Kali 1.1.0 with lili and with Win32DiskImager and tried to boot it in Windows 8.1. When I came to the boot order menu my USB was recognized as an UEFI-device, ...
0
votes
0answers
26 views

compare dynamic file [on hold]

I have a list of file that will be updated each hour and the name given to these file is according to the date and the hour for example: list_hour_date.txt list_9_20042015.txt list_10_20042015.txt ...
1
vote
0answers
18 views

dhcp ipv6 dynamic prefix delegation

I'm trying to setup Linux-based home gateway with IPv6 support. IPv4 configuration is finished and I'm using IPv4 NAT, ISC DHCP for addresses allocation, PowerDNS for local DNS setup, PDNS recursor to ...
0
votes
0answers
15 views

Unable to access localhost in Oracle VM (CentOs[Guest]) from Windows7(Host)

I'm trying to access the localhost in VM from Windows 7 64bit(Host OS), but unfortunately getting "Not Found" Http Error 404. I'm able to login to VM using Putty. Below are the work environment ...
-4
votes
0answers
27 views

transfer and rotate xyz coordinates [on hold]

consider these 10 points point x y z 01 41.809 10.374 16.139 02 43.348 9.633 16.491 03 41.954 11.651 18.934 04 42.428 12.296 19.653 05 40.667 11.310 19.207 06 ...
-3
votes
0answers
20 views

Duplicate Image Searcher using Bash [on hold]

I need to create a script to search through a directory (and sub-directories) of a user’s choice, creating a SHA1 hash value for each image. Each calculated value will need to be compared, where the ...
2
votes
1answer
30 views

How can I rasterize all of the text in a PDF?

You know when you have a pdf, which is a scan of a document and it's a really huge file, because it just stores the picture of the scanned document? And there are OCR tools which can help you to ...
0
votes
3answers
50 views

Windows to Linux migration [on hold]

I have been working with windows application development in C++ and SQL for around 3 years. I want to learn to develop C++ application on Linux and get myself little comfortable with Linux operating ...
17
votes
2answers
27k views

Manually generate password for /etc/shadow

I need to manually edit /etc/shadow to change the root password inside of a virtual machine image. Is there a command-line tool that takes a password and generates an /etc/shadow compatiable password ...
1
vote
0answers
29 views

Why can't Adobe Flash for Mac run on Linux?

As we know, Adobe no longer develops new Flash versions for Linux (except for Google Chrome, i know). It does, however, develop actively Flash for Windows and Mac. Linux can run native Windows ...
1
vote
2answers
36 views

busybox tar or split large file to multiple smaller files

I am running Linux version 3.4.8 on an at91sam9g20. I want to take a large record and split it into multiple files. I have tried a number of methods, but none appear to function correctly, e.g. ...
18
votes
1answer
715 views

How does Linux determine what facilities to use to run a (non-text) binary?

I understand that Linux uses shebang line to determine what interpreter to use for scripting languages, but how does it work for binaries? I mean I can run Linux binaries, and having installed both ...
3
votes
1answer
29 views

Detect and respond to ping in userspace

Is there a way to make a linux system react or do something when pinged from another device, besides just sending a reply (or not)?
5
votes
2answers
295 views
+100

How to measure PCI-Express bus usage?

I'm looking for a way to find out if PCIe bus is the bottleneck or not. It's not a problem to measure how much bytes was transferred through any particular NIC: Is there a way to find how much ...
55
votes
4answers
97k views

How do you empty the buffers and cache on a Linux system?

Prior to doing some benchmarking work how would one free up the memory (RAM) that the Linux Kernel is consuming for its buffers and cache?
0
votes
0answers
16 views

Configuring tun0 and tun1 IPSEC interfaces

I'm trying to make two IPSEC tunnel interfaces in order to make a bonding but i don't know how to start it since i can't find any tutorial showing something similar. Can anybody gives me an indication ...